54712821745 has 4 divisors (see below), whose sum is σ = 65655386100. Its totient is φ = 43770257392.

The previous prime is 54712821727. The next prime is 54712821767.

54712821745 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6821438464 + 47891383281 = 82592^2 + 218841^2 .

It is a cyclic number.

It is not a de Polignac number, because 54712821745 - 2²³ = 54704433137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54712821695 and 54712821704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5471282170 + ... + 5471282179.

It is an arithmetic number, because the mean of its divisors is an integer number (16413846525).

Almost surely, 2^54712821745 is an apocalyptic number.

It is an amenable number.

54712821745 is a deficient number, since it is larger than the sum of its proper divisors (10942564355).

54712821745 is a wasteful number, since it uses less digits than its factorization.

54712821745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942564354.

The product of its digits is 627200, while the sum is 46.

The spelling of 54712821745 in words is "fifty-four billion, seven hundred twelve million, eight hundred twenty-one thousand, seven hundred forty-five".